No proper documentation for creating a secondary userstore end to end

[GDRDABARERA]

Creating a secondary user store is one of the important task in WSO2 IS. But for a beginner, there is no proper documentation to configure a secondary user store end to end flow.
Eg: If its mysql , install it, create DB, run scripts, then do add user store in management console.
It would be good to have a sample or training material for this as well.

The documentation [1] which is already there, is not leading properly to achieve the task.

[1] https://docs.wso2.com/display/IS530/Configuring+Secondary+User+Stores